EP2567007A1 - Fibrilation apparatus - Google Patents
Fibrilation apparatusInfo
- Publication number
- EP2567007A1 EP2567007A1 EP11718035A EP11718035A EP2567007A1 EP 2567007 A1 EP2567007 A1 EP 2567007A1 EP 11718035 A EP11718035 A EP 11718035A EP 11718035 A EP11718035 A EP 11718035A EP 2567007 A1 EP2567007 A1 EP 2567007A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibrillating
- coating
- roller
- strips
- circumference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
- B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
- B26D1/285—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/10—Construction, mounting, or operating features of combing elements
- D01G19/105—Combing cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/002—Materials or surface treatments therefor, e.g. composite materials
Definitions
- the invention relates to a device for fibrillation of tapes or films according to the preamble of claim 1.
- Such devices for fibrillating synthetic tapes or synthetic films previously extruded from a thermoplastic material are well known and are used to pattern the tapes or films. This makes it possible, in particular, to form the smooth surfaces of the strips or foils with a structure that is executed in the longitudinal direction.
- the fibrillation is usually carried out by Fibrillierwalzen, as they are known for example from DE 1907 007 AI.
- Fibrillierwalzen At the periphery of the fibrillating are a variety of Fibrillierimplantation z. B. in the form of pins or needles towering so that the pins pierce the bands when guiding the bands on the Fibrillierwalze and produce depending on the wrapping of the bands on the Fibrillierwalze elongated tears in the bands.
- the number and offset of the pins or needles on the circumference of the fibrillating roll allows certain fibrillating structures to be scored within a band.
- the fibrillating elements are fastened to strips which are arranged in several uniformly around the circumference of the fibrillating roller.
- surface regions form on the circumference of the fibrillating roller between the strips on which the strips or film are guided.
- relative velocities between the fibrillation roller and the belts or the film are preferably adjusted to obtain certain fibrillating patterns.
- synthetic tapes are increasingly being formed from a plurality of material components. det, which are sensitive to surface friction and prone to damage.
- a further object of the invention is to provide a device for fibrillating a strip of film or a film, with which fibrillating structures can also be produced at relatively high relative speeds.
- the fibrillating roller in each case has a friction-reducing contact surface in the regions between the strips on the circumference.
- the invention has the particular advantage that the fibrillating roll can be used with high flexibility in order to produce fibrillating structures in strips and films.
- the tapes and the films can be particularly gentle on the contact surfaces of the Fibrillierwalze lead.
- very sticky and elastic materials are used, which are particularly sensitive.
- the belts can be advantageously guided over friction-reducing contact surfaces between the rails during a partial looping around the circumference of the fibrillation roller.
- the Training of the invention particularly suitable, in which the contact surfaces carry a multiple coating with a plurality of coating materials, which are formed from a plurality of sandwich-type individual coatings.
- the development of the invention is preferably carried out.
- the individual coatings of the multiple coating each have a minimum layer thickness of> 20 ⁇ m.
- an inner single coating has a larger by a factor of 5 layer thickness than an outer single coating. This makes it possible to even out and protect coarser surface structures of the base body with a first single coating.
- the coating material of the outer single coating is formed by a sliding material to reduce friction and the coating material of the inner single coating by a protective material to reduce wear.
- the sliding material used is preferably plastics, in particular a PTFE, and preferably a ceramic as the protective material. This means that very high operating times and especially gentle tape guides on the fibrillating roller can be carried out.
- the fibrillating elements are usually formed by needling in order to produce a fibrillating structure.
- knife tips are advantageously used as fibrillating elements whose cutting edges are arranged towering.
- the development of the invention is particularly advantageous, in which the rows of knives adjacent to the circumference of the fibrillating roll are held with their knife tips offset relative to one another on the relevant male connectors.
- the distribution of the partial incisions in the bands can be influenced both by the distance of the male connectors on the circumference of the fibrillation and by the distance of the blade tips to each other.
- the fibrillating roller is assigned a controllable drive, which is connected to a machine control unit for setting predetermined peripheral speeds on the fibrillating roller.
- the predetermined in the production of Fibrillier Modellen process parameters such as the draw ratio of the tapes or film can be used directly to set a predetermined for each process and the respective material matched peripheral speed of the fibrillating.
- the device according to the invention is particularly suitable for fibrillating strips or films after stretching with a relatively large thickness and a relatively high material elongation.
- 1 is a schematic diagram of an embodiment of the device according to the invention in an extrusion process
- Fig. 2 shows schematically a cross-section of the embodiment of Fig. 1;
- Fig. 3 shows schematically a plan view of the embodiment of Fig. 1;
- FIG. 6 is a schematic view of a blade tip of the fibrillating roller of FIG. 4
- FIG. 1 to 3 an embodiment of the device according to the invention for fibrillating a band of ribbons in an extrusion process is shown schematically.
- the embodiment is shown in an overall view of the extrusion process, in Fig. 2 in a side view and in Fig. 3 in a plan view schematically.
- the following description applies to all figures, insofar as no explicit reference is made to one of the figures.
- the embodiment of the device according to the invention is shown in an overall view of an extrusion process.
- the embodiment comprises an extrusion device 1 for producing a film from a thermoplastic material.
- the extrusion device 1 has an extruder 2.
- the extruder 2 is connected to an extrusion head 3, which extrudes a flat film 22 from a thermoplastic material melted by the extruder 2.
- the extrusion device 1 could also have two extruders in order, for example, to extrude a two-color flat film or a flat film with different polymer materials.
- the extrusion head 3 is associated with a cooling bath 4.
- a diverter 5 is provided to remove the adhering to the film 22 residual liquid by deflection and suction of the film 22.
- the deflection 5 is usually combined with a suction, which dissipates the adhering cooling liquid of the cooling bath 4.
- the cutting mechanism 5 is a cutter 6 downstream. In the cutting device 6, the film 22 is cut into a plurality of individual strips 23 having a predetermined width.
- the band of bands 24 and for stretching the bands 24 are several godets 7.1 and 7.2 arranged with driven godets in a row.
- the bands 23 are thereby guided with simple wrap around the circumference of the driven godets of the godet delivery 7.1 and 7.2 in parallel run next to each other.
- the heating device 8 could be formed for example by a convection oven, in which the bands are heated to a stretching temperature. To stretch the bands, the godets of the godet delivery 7.1 and 7.2 are driven with a speed difference. Between the heating device 8 and the second godet delivery 7.2 the device according to the invention is arranged, which is characterized here as Fibrillier heard by the reference numeral 9.
- the fibrillating device 9 has a fibrillating roller 10, on the circumference of which the belts 23 are guided with a partial looping for fibrillation.
- the fibrillating roller 10 is driven by an electric motor 25, which is controlled by the control unit 26.
- the control unit 26 is coupled to a machine controller 27, so that a certain peripheral speed of the fibrillating roller 10 can be set in dependence on the production speed of the belts defined by the godet drives.
- the fibrillating roller 10 can be driven at a circumferential speed, which is preferably greater than the production speed of the belts 23.
- FIG. 2 shows a side view of the fibrillation device 9
- FIG. 3 shows a plan view of the fibrillation device 9.
- the fibrillating roller 10 carries a plurality of circumferentially uniformly distributed strips 28, each having a plurality of upstanding Fibrillier instituten 29.
- the fibrillation elements 29 are formed by blade tips 30.
- Each blade tip 30 includes a blade that is oriented in the direction of rotation of the fibrillation roller 10. This structure will be explained in more detail below.
- fibrillating elements 29 on the fibrillating roller 10 can alternatively also be formed by protruding needles which would be held distributed on the strips 28.
- the adjusting device 14 On the inlet side of the bands 24 of the fibrillation roller 10 is associated with an adjusting device 14.
- the adjusting device 14 has a plurality of substantially vertically aligned guide pins 15, which are held on a support 16.
- the guide pins 15, which could alternatively be formed by freely rotatable guide rollers on vertical axes, each project between two adjacent bands 23 of the band of bands 24.
- the guide pins 15 are dimensioned in their outer diameter such that the bands 23 without substantial clearance between two adjacent pins 15 are performed.
- the carrier 16 carrying the guide pins 15 is held in a guide rail 17 and can be displaced transversely to the running direction of the belts 23 within the guide rail 17.
- the bands 23 of the band of bands 24 can be adjusted relative to the position of the blade tips 30 on the circumference of the fibrillating roller 10. In particular, symmetrical cuts can thus be realized by the blade tips 30 in the belts 23. In particular, this allows minimum distances to be ensured at the edge regions in the bands.
- two guide rollers 20.1 and 20.2 are provided, which guide the inlet and the outlet of the band of bands 24. After fibrillation and stretching, the belts 23 are fed to a crimping device 12 and a take-up device 18.
- the crimping device 12 and the winding device 18 have a plurality of texturing means 13 and winding stations 19 in order to texturize the strips individually or in several and to wind them into coils.
- the band of ribbons 24 can be singulated or combined into groups for this purpose.
- a grass yarn is produced, which could already be processed in a further processing process directly to an artificial turf.
- the fibrillation device 9 used there can also be used in other extrusion processes in which, for example, a film has to be fibrillated.
- friction-reducing contact surfaces 32 are formed on the circumference in each case between the strips 28.
- the Fibrillierwalze 10 of the aforementioned embodiment is shown in Fig. 4 in a perspective view.
- the Fibrillierwalze 10 has a plurality of strips 28 which are arranged uniformly on the circumference of the Fibrillierwalze 10. Between the strips 28, a plurality of friction-reducing contact surfaces 32 are formed on the circumference of the fibrillation roller 10.
- the contact surfaces 32 of the fibrillating roller 10 extending between the strips 28 have a multiple coating 33.
- the multiple coating 33 is preferably formed from a plurality of individual layers, which are sandwiched one over the other.
- FIG. 5 schematically shows a cross-sectional view of a typical multiple coating 33.
- the multiple coating 33 is formed in this embodiment by an inner single coating 34.1 and an outer single coating 34.2, which are sandwiched one above the other.
- the inner single coating 34.1 is applied directly to the coating surface 36 of the shell 35 of the fibrillating roller 10.
- the inner single coating 34.1 is applied with a layer thickness S : .
- an outer single coating 34.2 with a layer thickness S 2 is applied.
- the outer single coating 43.2 has a sliding material as coating material, so that the contact surface 32 directly facing the belts is determined by the material properties of the sliding material.
- the coating material of the inner single coating 34.1 is formed by a protective material, which represents a wear protection layer with respect to the jacket 35 of the fibrillating roller 10.
- a protective material preferably a ceramic is used, which is applied directly to the coating surface 36 of the shell 35. Such ceramics can be applied, for example, as a Plasmabe layering.
- the boundary surface of the inner single coating 34.1 to the outer single coating 34.2 is roughly structured in this embodiment, so that in the operating state after wear of the sliding material in the outer coating 34.2 adjusts a mixing surface, which is formed by surface portions of the sliding material and surface portions of the protective material.
- a guide surface has the particular advantage that the bands or film can be performed friction and wear resistant.
- PTFE plastics Teflon
- the jacket 35 was first applied with a plasma coating with a ceramic material in a layer thickness S : about 0.3 mm. Subsequently, a PTFE coating with a layer thickness S 2 of approx. 0.04 mm sand- wich applied over the ceramic layer.
- a ratio of the layer thicknesses has proved to be particularly favorable, in which the inner Einzelbeschich device 34.1 by a factor of 5 is greater than the outer single coating 34.2 (S ⁇ xS.,).
- the strips 28 carry a plurality of blade tips 30, which are held as a row of blades on the bar 28 at a distance next to each other towering.
- Each of the blade tips 30 includes a blade 31 which is oriented in the circumferential direction of the fibrillation roller 10.
- FIG. 1 a view of one of the blade tips 30 is shown in FIG.
- the knife tips 30 are held on the male connector 28, wherein the strip 28 is arranged in a groove of the fibrillation roller 10.
- the knife tip 30 is triangular shaped with a towering tip.
- the cutting edge 31 is ground, which extends to the tip.
- the cutting edge 31 is oriented in the direction of rotation of the fibrillating roller 10, so that it penetrates into a band upon rotation of the fibrillating roller and produces a part incision which is finite as a function of the wrapping of the band.
- the arrangement of the blade tips 30 and the strips 28 can be selected such that different Fibrilliermuster arise.
- parallel arrangements of knife tips and staggered arrangements of knife tips are possible.
- the fibrillation roller 10 is preferably operated at a peripheral speed which is 20% to 60% faster than a take-off speed of the belts. Due to the low cutting resistances of the blade tips 30 during fibrillation, relatively small differences in speed between the belts and the fibrillating roller can thus be maintained. The low incision resistance during fibrillation is also particularly suitable for providing very elastic bands and very thick bands with a uniform fibrillation structure. Thus, the device according to the invention has proven particularly in the production of grass yarns. Due to the very good sliding properties of the contact surfaces 32 on the circumference of the fibrillating roller 10, even elastic and sticky materials could even be fibrillated with relative speeds.
- Tapes preferably produced by coextrusion, with thicknesses in the range of 150 ⁇ m to 500 ⁇ m, could be advantageously fibrillated.
- the strains of the bands can have values of more than 50%. Thus, elastic bands with an elongation of up to 75% can still be safely fibrillated.
- the device according to the invention is basically suitable for fibrillating all conventional tapes and films of thermoplastic materials.
- the extrusion head 3 it is also possible for the extrusion head 3 to be replaced by a monofilament extrusion tool, so that a large number of individual strips are produced directly during the extrusion.
- the cutting device shown in Fig. 1 is omitted.
- the device according to the invention is also particularly suitable for individually produced bands after stretching to fibrillate. In particular, high occupation densities of the partial cuts in the individual strips are possible here. Due to the adjustment, even small minimum clearances at the edge of the bands can be set and maintained safely.
- the polymer types PP, LLDPE, HDPE or PA have proven to be suitable materials.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010019144 | 2010-05-03 | ||
DE201010033546 DE102010033546A1 (en) | 2010-08-05 | 2010-08-05 | Apparatus for fibrillating ribbons or foils, has two or more strips each having multiple projecting fibrillating elements, where fibrillating roll has friction-reducing contact surface in areas between circumferential strips |
PCT/EP2011/056929 WO2011138261A1 (en) | 2010-05-03 | 2011-05-02 | Fibrilation apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2567007A1 true EP2567007A1 (en) | 2013-03-13 |
Family
ID=44201335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11718035A Withdrawn EP2567007A1 (en) | 2010-05-03 | 2011-05-02 | Fibrilation apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130052293A1 (en) |
EP (1) | EP2567007A1 (en) |
CN (1) | CN102869820A (en) |
WO (1) | WO2011138261A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2567006A1 (en) | 2010-05-03 | 2013-03-13 | Oerlikon Textile GmbH & Co. KG | Method and apparatus for fibrillating synthetic ribbons |
CH704580A1 (en) | 2011-03-01 | 2012-09-14 | Burckhardt Christoph Ag | Needle device. |
US10227197B2 (en) * | 2013-08-16 | 2019-03-12 | The Procter & Gamble Plaza | Method for reducing the effects of parent roll variations during unwinding |
CN104358094B (en) * | 2014-10-15 | 2017-01-18 | 东华大学 | Easy fibrillation degree detecting device and method for fibers |
WO2016058873A1 (en) * | 2014-10-18 | 2016-04-21 | Oerlikon Textile Gmbh & Co. Kg | Method and device for producing a multifilament thread from a polyamide melt |
JP6818669B2 (en) * | 2017-09-25 | 2021-01-20 | 株式会社東芝 | Electric field spinning equipment |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
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US2115543A (en) * | 1936-10-17 | 1938-04-26 | Us Rubber Prod Inc | Process of covering perforated rolls |
US2352194A (en) * | 1937-09-13 | 1944-06-27 | Josef A Grabec | Method of molding perforated elastic material |
US2801501A (en) * | 1955-12-21 | 1957-08-06 | Peter J Schweitzer Inc | Apparatus for perforating paper |
US3255496A (en) * | 1963-11-01 | 1966-06-14 | Johnson & Johnson | Methods of producing perforated nonwoven fabric |
CH456838A (en) * | 1965-11-27 | 1968-05-31 | Mitsui Petrochemical Ind | Split fiber structure, method and device for its production and use thereof for the production of yarn-like material |
NL134100C (en) * | 1966-03-31 | 1900-01-01 | ||
US3756484A (en) * | 1968-05-03 | 1973-09-04 | Chevron Res | Apparatus for preparing fibrous web |
US3550826A (en) * | 1968-07-03 | 1970-12-29 | Chevron Res | Method for preparing extremely fine fibrous webs |
CH505919A (en) * | 1969-01-31 | 1971-04-15 | Chr Burckhardt Fa | Needle roller |
GB1358987A (en) * | 1970-08-13 | 1974-07-03 | Lamber Ind Research Ass | Fibrous material |
US3812561A (en) * | 1973-01-15 | 1974-05-28 | W Lundgren | Temple roll |
US3891494A (en) * | 1973-04-26 | 1975-06-24 | Goodyear Tire & Rubber | Pricker roll |
US3969565A (en) * | 1975-03-26 | 1976-07-13 | Norman Forrest | Card clothing method for treating thermoplastic sheet material |
CH630121A5 (en) * | 1977-12-20 | 1982-05-28 | Stewart Wm R & Sons Hacklemake | Tipped element especially for textile machines |
US4326909A (en) * | 1980-06-30 | 1982-04-27 | Minnesota Diversified Products, Inc. | Method and apparatus for forming a permeable insulation board for building construction |
US4978486A (en) * | 1987-08-20 | 1990-12-18 | Mitsui Toatsu Chemicals, Incorporated | Method for preparing perforated film |
JPH01317963A (en) * | 1988-06-16 | 1989-12-22 | Yuasa Itomichi Kogyo Kk | Thread contact member |
JPH075221B2 (en) * | 1990-10-03 | 1995-01-25 | 日本マイヤー株式会社 | Thread guide roller for textile machinery |
US5372494A (en) * | 1994-01-25 | 1994-12-13 | Reynolds Metals Company | Adjustable perforating roller for sheet material |
DE19645696C1 (en) * | 1996-11-06 | 1997-11-27 | Ahauser Gummiwalzen Lammers Gm | Covering elastomer sheath on roller core with fluoro-polymer adhesive |
DE19856223B4 (en) * | 1998-12-04 | 2004-05-13 | Advanced Design Concepts Gmbh | Method and device for producing a structured, voluminous nonwoven web or film |
AU721336B3 (en) * | 1999-11-12 | 2000-06-29 | Shao-Yi Chiu | Package sealing cutting machine |
US8241543B2 (en) * | 2003-08-07 | 2012-08-14 | The Procter & Gamble Company | Method and apparatus for making an apertured web |
DE102009015557A1 (en) * | 2009-03-30 | 2010-10-07 | Oerlikon Textile Gmbh & Co. Kg | Apparatus for the production of monofilaments or tapes |
-
2011
- 2011-05-02 EP EP11718035A patent/EP2567007A1/en not_active Withdrawn
- 2011-05-02 WO PCT/EP2011/056929 patent/WO2011138261A1/en active Application Filing
- 2011-05-02 CN CN2011800221780A patent/CN102869820A/en active Pending
-
2012
- 2012-10-30 US US13/663,629 patent/US20130052293A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2011138261A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102869820A (en) | 2013-01-09 |
WO2011138261A1 (en) | 2011-11-10 |
US20130052293A1 (en) | 2013-02-28 |
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